// license:BSD-3-Clause
// copyright-holders:smf
/***************************************************************************
National Semiconductor ADC12130 / ADC12132 / ADC12138
Self-calibrating 12-bit Plus Sign Serial I/O A/D Converters with MUX
and Sample/Hold
***************************************************************************/
#ifndef MAME_MACHINE_ADC1213X_H
#define MAME_MACHINE_ADC1213X_H
#pragma once
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
#define ADC12138_IPT_CONVERT_CB(name) double name(uint8_t input)
/***************************************************************************
MACROS / CONSTANTS
***************************************************************************/
class adc12138_device : public device_t
{
public:
typedef device_delegate<double (uint8_t input)> ipt_convert_delegate;
adc12138_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
template <typename Object> void set_ipt_convert_callback(Object &&cb) { m_ipt_read_cb = std::forward<Object>(cb); }
DECLARE_WRITE8_MEMBER( di_w );
DECLARE_WRITE8_MEMBER( cs_w );
DECLARE_WRITE8_MEMBER( sclk_w );
DECLARE_WRITE8_MEMBER( conv_w );
DECLARE_READ8_MEMBER( do_r );
DECLARE_READ8_MEMBER( eoc_r );
protected:
adc12138_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
void convert(int channel, int bits16, int lsbfirst);
ipt_convert_delegate m_ipt_read_cb;
private:
// internal state
int m_cycle;
int m_data_out;
int m_data_in;
int m_conv_mode;
int m_auto_cal;
int m_auto_zero;
int m_acq_time;
int m_data_out_sign;
int m_input_shift_reg;
int m_output_shift_reg;
int m_end_conv;
};
class adc12130_device : public adc12138_device
{
public:
adc12130_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
};
class adc12132_device : public adc12138_device
{
public:
adc12132_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
};
DECLARE_DEVICE_TYPE(ADC12138, adc12138_device)
DECLARE_DEVICE_TYPE(ADC12130, adc12130_device)
DECLARE_DEVICE_TYPE(ADC12132, adc12132_device)
#define MCFG_ADC1213X_IPT_CONVERT_CB(_class, _method) \
downcast<adc12138_device &>(*device).set_ipt_convert_callback(adc12138_device::ipt_convert_delegate(&_class::_method, #_class "::" #_method, this));
#endif // MAME_MACHINE_ADC1213X_H